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Re: squid with FreeBSD 6.0 tuning

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Hi,

I'm seeing some unusual cpu usage pattern in our cache farm as well. we 
have 3 cache connected to one wccpv1 router:

1. 2.66GHz P4 with 1GB RAM, 128M squid mem, 12GB aufs cachedir. RHL 7.3

 10:57am  up 117 days,  2:26,  1 user,  load average: 0.35, 0.35, 0.31
65 processes: 64 sleeping, 1 running, 0 zombie, 0 stopped
CPU states:  0.2% user,  0.1% system,  0.0% nice,  0.1% idle
Mem:  1015748K av, 1004084K used,   11664K free,       0K shrd,   12368K 
buff
Swap: 1052248K av,     632K used, 1051616K free                   32908K 
cached

  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
  803 nobody    17   0  326M 326M  1320 S    55.1 32.8 33841m squid

2. 3.2GHz P4 HT with 1GB RAM, 128M squid mem, 12GB aufs cachedir. RHL 7.3

 10:57am  up 116 days, 14:23,  1 user,  load average: 0.91, 0.79, 0.44
63 processes: 62 sleeping, 1 running, 0 zombie, 0 stopped
CPU0 states:  3.1% user, 18.0% system,  0.0% nice, 77.1% idle
CPU1 states:  0.1% user, 11.1% system,  0.0% nice, 87.0% idle
Mem:  1023688K av, 1011440K used,   12248K free,       0K shrd,   21424K 
buff
Swap: 1052248K av,   19808K used, 1032440K free                   27100K 
cached

  PID USER     PRI  NI  SIZE  RSS SHARE STAT %CPU %MEM   TIME COMMAND
24046 nobody    16   0  287M 284M 14120 S    18.9 28.5  3785m squid

3. 2.8GHz P4 with 1GB RAM, 128M squid mem 12GB aufs cachedir. CentOS 4.4

top - 10:53:56 up 46 days, 31 min,  3 users,  load average: 0.07, 0.06, 
0.09
Tasks:  49 total,   2 running,  47 sleeping,   0 stopped,   0 zombie
Cpu(s):  2.0% us,  1.0% sy,  0.0% ni, 92.0% id,  4.3% wa,  0.0% hi,  0.7% 
si
Mem:   1034528k total,  1021380k used,    13148k free,   126964k buffers
Swap:  2096472k total,      112k used,  2096360k free,   430644k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
 5152 nobody    15   0  374m 365m 1424 S  3.3 36.2 676:22.76 squid


All of the above squid boxes receive equal amount of hash bits from wccp. 
can you link anything ?? Thanks.


On Mon, 27 Nov 2006, Adrian Chadd wrote:

> On Sun, Nov 26, 2006, Wojciech Puchar wrote:
> > getting this under moderate load (highest is 2* this).
> > 
> > 2/3 of time is system time. is it OK? can squid be made faster. it's using 
> > diskd, disks are much less loaded than CPU
> 
> Which version of Squid are you using? Whats the request rate at the time
> Squid is using that much CPU? Whats the hardware spec?
> 
> 
> Adrian
> 
> 

-- 
Manoj Rajkarnikar 

System Administrator 
Vianet Communications Pvt Ltd
Pulchowk, Lalitpur, Nepal. 
(PH)977-1-5546410


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